Ball-grinding machine.



No. 668,462. Patented Feb.- l9, I901. R. &. L. F.SC'HULZE.

BALL GRINDING MACHINE.

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No. 668,462. Patented Feb. l9, IQOI.

n. a L. F. SCHULZE.

BALL GRINDING MACHINE. (Application filed July 5, 1900.) (No Model.) 3 Shaets-Sheet 2.

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Arrow/Ex No. 668,462. Patented Feb. l9, I901.

R. 81. L. F. SCHULZE. BALL GRINDING MACHINE.

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WITNESSES ATTORNEY INVENTOI? 5 THE uoRms pzrzas co.. mu'muma. WAsmNuToN. n. c

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ROBERT SOHULZE AND LEON F. SCHULZE, OF CLEVELAND, OHIO.

BALL-=GRlNDING MACHINE.

SPECIFICATION forming art of Letters Patent No. 668,462, dated February 19, 1901. Application filed July 5, 1900. Serial No. 22,576. (No model.)

To ctZZ whom it may concern:

Be it known that we, ROBERT SoHULzE and LEON F. SCHULZE, citizens of the United States, residing at Cleveland, in the county of Guyahoga and State of Ohio, have invented certain new and useful Improvements in Ball-Grinding Machines, of which the follow-.

ing is a specification.

Our invention relates to improvements in ball-grinding machines in which the balls are carried by a plurality of disks all receiving circular rotation upon and from a central spindle and axial rotation through engagement with a stationary gear; and the objects of our improvement are, first, to provide in machines of this kind a mechanism which enables convenient insertion of balls to be ground and an expedient removal of balls that are ground; second, to maintain the means which form the ball-raceways in proper condition at minimum cost for repairs, and, third, to save the journals and hearings of the ball-rotating mechanism from being injured by the waste material. We attain these objects in a machine equipped and constructed in the manner as illustrated in the accompaing drawings, in whiel1- Figure 1 represents an exterior elevational view of the vital parts of our ball-grinding machine. Fig. 2 is a central vertical sectional view of the same. Fig. 3 isa horizontal face View of the ball receiving and rotating parts of said machine and the casing therefor, and Figs. 4 and 5 are detached sectional views of the ball-carryingparts of said machine.

Like letters of reference denote like parts in the drawingsand specification.

Referring to Figs. 1 and 2, A represents a part of the base, and B part of the frame. Secured to the latter is the bracket 0 and casing D. Vertically guided in said bracket and supported in the foot-bearing Eof said plate A is the hollow spindle F. Motion is imparted to said spindle by means of bevel-gearings, of which the pinion a is secured to the driving-shaft G and the wheel I) to the spindle be low the arm 0. Intermediate the arms 0 and dof said bracket is secured a hand-wheel H upon said spindle to enable turning of same by hand when the machineis at rest or when same is to be charged with balls or finished balls are taken therefrom. To the head 6 of the spindle are attached the sleeves 0r housings I I I" in symmetric triangular position and relations, each of which carries aspindle JJJ". (See Figs. 2 and 3.) The upper face of said spindles enlarges into a diskf, with depending fiangef. To the former are attached the circular plate g and flat-faced ring 72,, forming conjointly the racewaysc' for the balls. The flangef serves in the capacity of a guide for the ball-retainers K K K. Said ball-retainers comprise a side-apertured ring j, provided with a tapering ring Zr, which is held secured to the face of the first-named ring by means of the follower Z. (See Figs. 2 and 3.)

The lower terminal of the spindles J J J is supported in an adjustable cone step-bearing m, and intermediate said bearing and the head e are placed the gear-wheel L and the pinions L L L. The wheel L is secured to the stationary bracket a, concentric with the spindle F, while the pinions are secured to the spindles J J J, in mesh with gear L. On top of the spindle head 6 is provided or formed the plate M, which extends over the opening it in the stationary casing D. Goncentric with the spindlesJJ J flanges oand sleevesp are formed upon said plate M for protection of the spindle bearings. (See Fig. 2.) Extending through the spindle F is a rod 0, which carries a plate P, that engages under the ball-retainers K K K andpartly surrounds the flanges f. Operatively connected with the lower terminal of said rod is the lever Q, whereby said rod, plate, and ballretainers can be raised to enable the charging and discharging of the balls.

Fig. 4 illustrates the retainer (respectively retainers) in elevated position sufficient for charging the balls, while in Fig. 5 a still higher position is shown of the retainers relatively to the ball carriers or raceways. In the latter instance the balls can and will pass through the apertures of the retainers, drop into the casing below, roll along the inclined bottom of the casing D, and finally collect in the pocket R, from where they can be readily removed upon pushing the movable bottom the follower t.

As shown, said wheel S is attached to a disk T by means of the conical enlargement s and (See Fig. 2.) The disk T is secured to and rotated by the spindle U, which is driven in opposite direction to the spindle F, while the ball-carrying disks also turn around their own axis in addition to being rotated by said spindle. A casing V surrounds the wheel S and is having telescoping connection with the lower casing, substantially as shown in Fig. 2. Furthermore, said casing V is secured to a tube W, which has only vertical movement. The former therefore remains stationary when being once adjusted in position for the purpose of establishing a dust-proof inclosure around the entire grinding mechanism. The dotted lines u in spindle U indicate a conduit wherein water is supplied to facilitate the grinding process, also to flush out the waste products, which are drained off through pipe y.

From the foregoing it can be readily seen that machines constructed and equipped substantially as shown can conveniently be charged with balls to be ground, also the balls which are ground can expediently be removed therefrom. Furthermore, the manner in which the ball-raceways are built up (respectively formed) reduces the cost of maintenance of serviceable raceways to the greatest possible extent, also the journals and bearings are properly guarded from being injured by contact. with the slush or waste material.

Finally all parts can be adjusted to the high est degree of accuracy to arrange them in proper working condition and to compensate for wear.

What we claim and desire to secure by Letters Patent, is

1. In a machine for grinding balls, having rotating spindles, one carrying the grinding medium, the other carrying a plurality of shouldered disks upon planitarily-rotated spindles, the combination of movable ballnation with the main spindle and planitarilyrevolved disks of side-apertured rings having taper rings secured to the face side thereof whereby the balls are held against the raceways which are formed upon said disks, a rod extending through said spindle, a plate supported upon said spindle and a lever adapted to raise said spindle, the construction and arrangement being such that the first-named rings can be raised more or less to enable charging of the balls and to admit of dropping of the balls through the apertures of said rings substantially in the manner as and for the purpose set forth.

3. In a ball-grinding machine the raceways for the balls formed conjointly by recessed ball-carrying disks and a member encircling said disks, said member being equipped with removable cone rings as shown and described.

4. In a ball-grinding machine the combination of a suitable bracket having a stationary gear provided at the upper terminal thereof, a hollow spindle guided in the arms of said bracket and supported upon antifrictionballs, a plurality of spindles carried by the main spindle, the former having pinions in mesh with the stationary gear and a flanged shouldered disk, apertured rings fitting over the flanges of said disks and retaining the balls conjointly with the shoulder upon the face of said disk, a' plate engaging under said rings, a rod extending through said hollow spindle and equipped for raising said plate, means for driving the main spindle and a two-part casing surrounding the ball-rotating mechanism and adjacent grinding medium all constructed and arranged substantially as and for the purpose set forth.

In testimony whereof we affix our signatures in presence of two witnesses.

ROBERT SOHULZE. LEON F. SOHULZE. Witnesses:

BERNH. F. EIBLER, JOHN YUENGLING. 

